屏幕的触摸方法

1、开启多点触摸

//开启多点触摸
        Input.multiTouchEnabled = true;

2、判断单点触摸

if(Input.touchCount == 1)
        {
            //触摸对象
            Touch touch = Input.touches[0];
            //触摸位置
            Debug.Log(touch.position);
            //触摸阶段
            switch (touch.phase)
            {
                case TouchPhase.Began:
                    //开始
                    break;
                case TouchPhase.Moved:
                    //移动
                    break;
                case TouchPhase.Stationary:
                    //静止
                    break;
                case TouchPhase.Ended:
                    //结束
                    break;
                case TouchPhase.Canceled:
                    //取消
                    break;
            }
        }

3、判断多点触摸

if(Input.touchCount == 2)
        {
            Touch touch1 = Input.touches[0];

            Touch touch2 = Input.touches[1];
        }